... Immune Astaxanthin (Haematococcus pluvialis extract) Synonyms: 3,3'-dihydroxy-ß-carotene-4,4'-dione;Trans-Astaxanthin; Haematococcus Powder Botanical Resource: ... Powder 1%, 2%, 2.5%, 3%, 3.5% (by UV or HPLC)2.Shell Cracked Astaxanthin Powder (Cell Wall Broken Astaxanthin Powder) 2%, 2.5%, 3%, 3.5% Product ... up to 550 effective than Vitamin E and 4 times than lutein in various antioxidant capacities. ...